The automation should push the adaptive limiter into distortion just before beat 3 of the bar but, as you can hear (and see on the soundcloud player), it happens around 50ms after beat 3 has begun. I would expect, given how I drew the automation, for beats 1 and 2 to sound identical, then beats 3 and 4 to sound identical.

It looks like the audio is compensated for the delay introduced by the plugin - but that the automation is not. So the supposedly "sample-accurate" automation is way out of sync... or possibly it's exactly in sync with the project timeline, but seems to be being applied to audio that has been shifted by PDC.

If you can draw automation on top of MIDI, I'd expect them to both occur at the same time, rather than one be shifted and the other not?

I deleted my prefs file as I've seen suggested elsewhere and it still occurs.

And of course, this is just a simple example. In complex projects it can be *really* bad.. and is sometimes different when listening to the final rendered version.

Having had this conversation on a couple of other (non-logic specific) forums, I think this is a known issue... where the graphical stuff isn't compensated for in the same way as the audio? So I guess my questions are:

1) Am I doing something wrong, or is this really what Apple call "sample accurate automation"?

2) If there's no simple fix, are there any tips and tricks with tracks/buses for mitigating this effect?